Jump-absorbing mechanism



April 17, 1928. 1,666,307

a. A. PROCTOR JUMP ABSORBING IECHANI SN Filed larch 1926 Barlow! Prado/2' Fig. 1

Patented Apr. 17, 1928.

PATENT OFFICE,

I ARTON A. PBOOTOB, OI NEW YORK, N. Y., ASSIGNOR TO NEWS PBDIECTION COB,-

PORATION, OF NEW YORK, N. Y., A CORPORATION 01' NEW YOBK JUMP-ABSORBING MECHANISM.

Application filed may 1, 1928. Serial No. 91,466.

This invention relates in general to news projecting machines and more particularly to mechanisms for controlling the tension of the tape so that any jars or jumps transmitted to the tape in stoppmg and startmg the feed thereof will be so absorbed that it will not be transmitted to the portion of the tape located in projecting position.

Among the objects of the present nvention it is aimed to provide a tape rewlndmg mechanism and improvements associate with a news projecting machine whereby the jar or jump transmitted to the tape when the rewinding mechanism stops or starts Wlll be absorbed so that they wil not be transmitted to the portion of the tape located in projecting osition.

Specificaily the invention aims to rovide an improved mechanism whereby a onnell winder may be used as a tape rewinder, and stopped and started in cooperation with a news projecting machine, and the ars and jumps transmitted to the tape when the Winder is stopped or started be absorbed and not transmitted to the portion of the tape located in projecting position.

To this end, the invention also aims to provide an improved structure that can be made at a minimum cost and give maximum efficiency.

These and other features, capabilities and advantages of the invention Will appear from the subjoined detail description of one specific embodiment thereof, illustrated in the accompanying drawings, in which Figure 1 is a sectional diagrammatic view showing a complete news projecting machine equipped with the present improvements; 6

Fig. 2 is a section on the line 2-2 of Fig. 3 is an enlarged fragmental section showing the improved mechanism in position when the printihg mechanism is operating.

Fig. 4 is a section on the line 4-4 of Fig. 3.

Fig. 5 is a section on the line 5-5 of Fig. 3.

Fig. 6 is an enlarged detail illustrating the respective positions of the lever forming an essential part of one of the jump or dissipating mechanisms and the tape when the printing mechanism is at rest.

The improvements constituting the present lnvention are illustrated as equipped on news pro ectin machines such as illustrated in my copen mg application, Serial No. 82,295, filed January 19, 1926.

In such type of news projecting machines, the screen 1, as illustrated in Fig. 1, is supported in a screen housing 2 having a dcflecting mirror 3, the housing 2 being preferably secured to a wall'or the like by means of brackets 4.

Below such screen housing 2, there is situated the projecting machine proper, which consists essentially of a frame 5 having an upper platform 6 and a lower platform 7. On the upper platform 6 there is formed a houslng 8 in one end of which there is located the mirror 9 which projects the images received through the opening 10 in the housing 8 up through the opening 11 in the housing 2 to the mirror 3 from which it is projected onto the screen 1.

At the other end of the housing 8 on the platform 6 there is provided a lamp casing 12 in which the lamp 13 is mounted. The rays from the lamp 13 are projected by the condensing lens 14 to the mirror 15 and from the mirror 15 deflected to the condensing lens 16. There is provided an opening adjacent to the condensing lens 16 over which there is preferably provided a glass tape guide 17 to permit the tape T to pass over the same, receive the rays from the lam 13 to form images to be projected througii the projecting lens supported in the lens housing 18 from which the images are projected to the mirror 9 and thereby deflected to the mirror 3 and by the mirror 3 defiected onto the screen 1. i

In the present instance, see Fig. 4, there is attached to the casing 12 a bracket 19 for the reel 20 to support the roll 21 of tape T. The tape after leaving the reel 20 passes to the printing mechanism 22 and from there preferably passes over a guide 23 at a position preferably above and to the rear of the light opening formed in the casing 12. The top of the casing 12, as indicated in Fig. 4 at 24, is preferably cut away a short distance and has a support 25 provided in the lower end of said cutaway portion, directly above and engaging the tape guide 17.

The guide 23 is preferably composed of sheet metal and is looped at one end to form p01 t1'01223, and then through the cutaway a guiding portion 23' extending cutaway portion 24 and secured at over the on the pin 60 secured to the housing 34. its other The bracket has also secured thereto it end to the top of the casing 12. The tape T weight-arm 61 having an adjustable weight after leaving the printing mechanism first 62 connected thereto whereby the amount of 5 passes over the extended curved or looped pressure exercised by the roller 58 may be 70 adjusted at W111. In other Words, as also portion 24 to the support 25, the edges 24 and 24 of the cutaway portion 24 forming guides for the tape '1 in its passage to the support 25. Preferably as shown, the-loop portion 23 also terminates a short distance to the rear of the support 25.

After leaving the guide 23, the tape is defleet-ed out of its ath of movement by the bent or looped end 26 of the rod or lever L preferably composed of wire, and from there passes to the support and then over the guide 17 to the guide roller 27 supported on the bracket 28 secured in the present instance to the fan housing 29. The fan housing 29 is secured to the collar 30 of the motor 31. From the roller 27 the tape passes to the guide roller 32 mounted on the shaft 33 fixed to the housing 34 of a gear transmission. From the guide roller 32 the tape T passes over the positively driven roller 35 fixed on the shaft 36 and from the roller 35 the tape passes under the guide roller 37 mounted on the shaft 38 secured to the housing 34, and from the guide roller 37 the tape T passes over the guide roller 39 secured on the shaft 40 mounted in the bracket 41, attached to the housing 34. From the roller 39, the tape T'passes to the reel 42 of the Bonnell winder.

The standard form of Bonnell Winder has a standard 43 near the lower end of which is mounted a shaft 44 to which is attached a spring 45. The shaft 44 has attached thereto a large gear 46 which meshes with a small gear 47 fixed on a shaft 48 having a large gear 49 secured thereto, and which large gear 49 in turn meshes with a second small gear 50 fixed on a shaft 51 on which shaft 51 is mounted the reel 42 and also a fan 52 which acts as a governor or control, the shafts 48 and 51 being mounted in the standard 43. In the present instance there is pivotally secured to the upper end of the standard 43 a lever 53 which has a downwardly bent finger 54 at one end to cooperate with the fan blades of the fan 52 while the other and elongated arm 55 of the lever 53 is bent over to form the finger 56 illustrated in Fig. 5to rest on the tape T. The roller 35 is operatively connected to the shaft 57 of the motor 31 by a train of reduction gearing not shown. For assisting in imparting a feeding action to the tape T as it passes over the roller 35, there is provided a roller 58 which is yieldably held in engagement with the tape T to maintain the tapeT in frictional engagement with the roller 35. The roller 58 in the present instance is pivotally connected to the bracket 59 pivotally mounted appears in my copending application Qerial No. 90,982, filed February 26, 1926, the roller 35 will continue to operate even though the printing mechanism 22 is at rest and the weight 62, will be so adjusted that the pressure exercised by the roller 58 will he suflicicnt to maintain the tape T in engagement with the roller 35 to advance the tape when the printing mechanism 22 is operating, and yet be slight enough to remain at rest with the tape T when the printing mechanism 22 rests and permit the roller 35 to rotate Without advancing the tape '1, and without injury to the tape T.

From the foregoing it will be seen that the mechanism here provided for absorbing the jar or jump transmitted to the tape by the printing mechanism 22 is substantially the same as that illustrated in my copending application Serial No. 90,982, filed February 26, 1926.

The lever or rod L of the construction illustrated in that application and which is here used, has its straight end secured in a disc 63 by thumb screws 64. The disc is pivoted near its edge as indicated in Fig. 3 to the bracket 65. The bracket 65 is adjustably secured to the bracket 66 by a thumb screw 67 passing through a slot formed in the bracket 65. The bracket 66, as indicated in Fig. 3, is secured to the top wall 67 of the housing 8.

From the foregoing, it will be seen that the looped end 26 of the lever L will normally extend downward due to the pivotal connection of the disc 63 with the bracket 65 and the weight of the lever L, so that the looped end 26 will normally maintain or impinge a portion of the tape T against the support 25 when the tape T is slack, as indicated in Fig. 3. It will also be seen that the looped end 26 projects a sufficient distance so that. the guide 23 will obstruct its upward movement should it be raised, as indicated in Fig. 6, in which position it will maintain or impinge a portion of the tape T in engagement with the gu de 23.

The operation of the projecting machine proper and the mechanism for dissipating the jump imparted to the tape T by the printing mechanism 22, will operate substantially as follows: l/Vhen the printing mechanism or t cker 22 starts to operate it is desirable also to start the operation of the motor 31. \Vith such printing mechanisms, the tape T will only be fed forward while the printing mechanism operates. In other- Words, if no quotations or the like are being transmitted, the ticker is at rest. In the embodiment illustrated, the motor 31 will continue to operate even though the ticker 22 is at rest.

When the ticker 22 is at rest, and the motor 31 is 0 rating, it will draw the tape T substantial y taut so that it will engage the looped end 26 of the lever L and due to the relative positions of the guide portion 23 and shoulder 25 to the looped end 26, and the resulting curve formed in the tape T, the tension on the tape T will exercise an upward pull on the lever L to cause it to assume the position illustrated in Fig. 6, where the looped end 26 impinges the tape T against the guide portion 23. Thereupon. when the ticker again begins to operate, it will first relieve the tension in the tape T, form a loop, as indicated in Fig. 3, and permit the looped end 26 of the lever'L to descend so that it will rest on the tape T and cause the tape T to hug the support 25 forming a friction creating surface. By means of the friction caused between the looped end 26, tape T and support 25, a retarding tendency will be exercised on the tape T, forming a frictional point of contact suflicient to permit a loop being maintained between the guide portion 23 and the looped end 26, as indicated in Fig. 3, that is, so localize the loop, that its slack will not continue beyond the support 25, so that whatever jumps are transmitted to the tape T by the printing impulses of the printing mechanism will be absorbed by the loop thus formed and prevent the transmissionof the jumps beyond the support 25. In turn, as the ticker starts to operate, the tape will again be free to be drawn down by the drawing out rollers 35 and 58, to cause a uniform travel of the tape T downward over the guide 1.7.

When a rewinder is used such as the Bonnell rewinder illustrated, and an automatic stop and start is associated therewith. in the course, of operation, when the Bonnell winder is stopped and also when started, it causes a shock or jump to be transmitted to the tape T. The present improvements are directed to associating a rewinding mechanism with a news projecting machine and cooperating means therewith for absorbing the shock or jump transmitted to the tape by the stopping and starting of the rewinding motor.

In the present instance, it will be indicated that when the printing mechanism 22 stops, and simultaneously therewith the feeding mechanism of the printing mechanism 22 ceases to impart a feeding impulse to the tape T, the continued rotation of the roller 35 cooperating with the idler 58 will continue to draw the tape T downward until the lever L has been engaged and re umes the position illustrated in Fig. 6. At such position, suflicient friction will be established between the guide 23, lever L and shoulder 25 in addition to the resistance offered by the printing mechanism, to take up the slack which will have been formed between the roller 39 and reel 42. As soon as this slack has been taken up, the finger 56 of the lever 53 will be engaged and raised to lower the finger 54 of this lever into the path ofi movement of the fan 52 whereupon the rewinding motor, the Bonnell rewinder in the present instance, will be caused to stop. The shock or jump that may be transmitted to the tape '1 by this sto ping of the Bonnell winder, will-be absor ed by the Bonnell winder itself. since the roller 58 and the roller 35 will maintain the tape T sufficiently tight to prevent the jump being transmitted back beyond it to the projecting mechanism.

Again, when the printing mechanism 22 I resumes operation. and again feeds the tape '1 forward, the rollers 35 and 58 will again advance the tape T and form a slack between the roller 39 and reel 42, whereupon the finger 56 of the lever 53 will again descend and raise the finger 54 of the lever 53 to release the fan 52 and permit the fan to resume the rewinding operation. whatever jar or jump may be transmitted to the tape '1 by the starting of the Bonnell winder, will be absorbed in the loop formed between the roller 39 and reel 42.

It is obvious that various changes and modifications may be made to the details of construction without departing from the general spirit of the invention as set forth in the appended claims.

I claim:

l. The combination with a printing mechamsm for printing news items on a tape, of a projecting mechanism for projecting images of the items printed on the tape, means for imparting a feeding impulse to the tape after a given printing impression, a rewinding roll for Winding up the tape after same has been projected, means for imparting a rotation to the said roll,means for stopping the rotation of said roll normally out of stopping position'when the tape is slack and actuatable into stopping position by the tape when the tape becomes taut, and means for absorbing the jump transmitted to the tape by the starting and stopping of the rewind roll to prevent transmitting the jump to the portion of the tape located in the projecting mechanism.

2. The combination with a printing mechanism for printing news items on a tape, of an image projecting mechanism, means for imparting a feeding impul e to the tape toward the projecting mechanism after each printing impression to create a slack in the tape during its advance, a tape rewind roll free to wind up the tape when the tape is slack, said feeding means anchor- Here.

ing one end of the tape against advance when the printing mechanism is at rest whereupon the rewind roll will continue to wind up the tape until it becomes taut, a lever resting on the tape and operable to stop the rotation of said rewind roll when said tape becomes taut and to release the roll for starting its rotation when the tape again becomes slack, and means for absorbing the jump transmitted to the tape by the starting and stopping of the rewind roll to prevent transmitting the jump to the portion of the tape located in the projecting mechanism.

3. The combination. with a tape, of an ilnage projecting mechanism, a printing mechanism for printing news items on said tape and advancing the tape to said projccting mechanism, said printing mechanism anchoring one end of the tape against ad vance when it is at rest, a constantly driven feed roller from which said tape passes after leaving said projecting mechanism, a second roller frictionally maintaining the tape in engagement with said feed roller to advance the tape after leaving said projecting mechanism but sufiiciently yieldable to remain idle with the tape when the printing mechanism is at rest and to permit the driven feed roller to rotate without causing injury to the tape, a tape rewind roll for winding up the tape after leaving said driven feed roller, and means for stopping the rotation of said rewind roll normally out of stopping position when the tape is slack and actuatable into stopping position by the tape when it becomes taut.

4. The combination with a tape, of a printing mechanism for printing news items on said tape, a projecting mechanism for projecting images of the news items, means for im 'iarting a feeding impulse to the tape after a given printing impression to advance the tape to said projecting mechanism, a driven rewind roll, a guide between said projecting mechanism and said rewind roll, the tape passing froin the projecting mechanism to the guide and then to the rewind roll, and a loop-forming lever resting on the tape between said guide and rewind roll and operable to start or stop the rewind roll dependent upon the tension of the tape, the loop in the tape functioning to absorb the jump transmitted to the tape when the rewind roll starts or stops and thus preventing the transmission of said jump to the portion of the tape located in said projecting mechanism.

5. The combination with a-tape, of a ticker mechanism for printing news items on said tape and imparting a feeding impulse to the tape after each printing impression, a projecting mechanism having a pro ecting opening, a rewind roll, means for driv-' ing the rewind roll, a frame in which the rewindroll is mounted, a control blade on said rewind roll, a tension device for maintaining the tape taut as it passes said projecting opening but yieldable to slip relative to said tape when said tape is at rest due to the ar-,.

roll to be driven, the tape engaging arm of said lever being raised when the loop in said tape is dissipated due to the arrest of said ticker mechanism thereby to depress said blade co-operating arm-to obstruct the control blade in turn to stop the rewind roll.

6. The combination with a tape, of a ticker mechanism for printing news items on said tape and imparting a feeding impulse to the tape after each printing impression, a projecting mechanism having a projecting opening, a rewind roll, means for driving the rewind roll, a frame in which the rewind roll is mounted, a control blade on said rewind roll, a positively driven feed roller for maintaining the tape taut as it passes said projecting opening but yieldable to slip relative to said tape when said tape is at rest due to the arrest of said ticker mechanism, and a lever pivotally mounted on said frame having one arm cooperating with said control blade and the other arm resting on the portion of tape disposed between said tension device and said rewind roll to depress said portion of the tape to form a loop when the tape is being advanced by said ticker mechanism and thereby liberate the blade co-operating arm from said control blade to permit the rewind roll to be driven, the tape engaging arm of said lever being raised when the loop in said tape is dissipated due to the arrest of said ticker mechanism thereby todepress said blade cooperating arm to obstruct the control blade in turn to stop the rewind roll.

7. The combination with a tape, of a ticker mechanism for printing news items on said tape and imparting a feeding impulse to the-tape after each printing impression, a projecting mechanism having a projecting opening, a rewind roll, means for driving the rewind roll, a frame in which the rewind roll is mounted, a control blade on said rewind roll, a positively driven feed roller, a second roller co-operating with said feed roller and frietionally maintaining the tape in engagement with said feed roller whereby the tapeis advanced after leaving the projecting opening, said second roller being yieldable to remain idle with said tape to permit said feed roller to slip relative to said tape when said tape is at rest due to the arrest of said ticker mechanism, and a lever pivotally mounted on said frame having one arm co-operating with said control blade and the other arm resting on the portion of tape disposed between said tension device and said rewind roll to depress said portion of the tape to form a loop when the tape is being advanced by said ticker mechanism and thereby liberate the blade co-opcrating arm from said control blade to permit the rewind roll to be driven, the tape engaging arm of said lever being raised when the loop in said tape is dissipated due to the arrest of said ticker mechanism thereby to depress said blade co-operating arm to obstruct the control blade in turn to stop the rewind roll.

8. The combination with a tape, of a ticker mechanism for printing news items on said tape and imparting a feeding impulse to the tape after printing impression, a projecting mechanism having a projecting opening, a rewind roll, a spring motor for actuating the rewind roll, a frame in which the rewind roll is mounted, a control blade operably connected to said rewind roll, a tension device for maintaining the tape taut as it passes said projecting opening but yieldable to slip relative tosaid tape when said tape is at rest due to the arrest of said ticker mechanism, and a lever pivotally mounted on said frame having one arm cooperating' with said control blade and the other arm resting on the portion of tape disposed between said tension device and said rewind roll to depress said portion of the tape to form a loop when the tape is being advanced by said ticker mechanism and thereby liberate the blade co-operating arm from said control blade to permit the rewind roll to be driven, the tape engaging arm of said lever being raised when the loop in said tape is dissipated due to the arrest of said ticker mechanism thereby to depress said blade co-operating arm to obstruct the control blade in turn to stop the rewind roll.

9. The combination with a printing mechanism for printing news items on a tape, of

a projecting mechanism, means for imparting a feeding impulse to the tape to advance the tape from said printing mechanism to said projecting mechanism, a support located between said projecting mechanism and said feeding means and spaced from said feeding means, friction creating means for pressing the tape into engagement with said support and permit the formation of a free loop in the space formed between said support and said feeding means during the operation of the feeding means, means for imparting a uniform drawing action on the tape to draw the tape past said projecting mechanism and cooperating with said friction creating means to maintain taut the portion of the tape located at the projecting mechanism, and a re-wind reel for receiving the tape from said drawing means.

10. The combination with a printing mechanism for printing news items on a tape, of a projecting mechanism, means for imparting afeeding impulse to the tape to advance the tape from said printing mechanism to said projecting mechanism, a support located between said projecting mechanism and said feeding means, friction creating means for pressing the tape into engagement with said support and permit the formation of a free loop in the space formed between said support and said feeding means during the operation of the feeding means, means for imparting a uniform drawing action on the tape to draw the tape past said projecting mechanism and cooperating with said friction creating means to maintain taut the portion of the tape located at the projecting mechanism, said drawing means also cooperating with said feeding means to maintain taut the portion of the tape located at the projecting mechanism when the feeding means is arrested, and a re-wind reel for receiving the tape from said drawing means.

BARTON A. PROCTOR. 

